For acute urticaria, you should usually see a dermatologist. If the hospital has more specialized departments, you can also choose the allergy department. If you have severe symptoms such as difficulty breathing, it is recommended to go to the emergency department immediately.

Specifically, you can choose based on the following:

1. General outpatient visit: Most cases of acute urticaria present with wheals and itching on the skin. Dermatologists can make a diagnosis and prescribe anti-allergy medications.
2. Specialist clinic selection: Some hospitals have an allergy department that specializes in treating allergy-related diseases. If you suspect that your allergies are caused by food, drugs, or other allergens, you can choose this department.
3. Emergency treatment: If symptoms such as tightness in the throat, difficulty breathing, dizziness, or palpitations occur, it may indicate a severe allergic reaction, and you should go directly to the emergency department for emergency treatment.
Before your appointment, be sure to record the time when the rash appeared and possible triggers (such as diet or contact with allergens) to help your doctor make a diagnosis. In daily life, try to avoid scratching your skin and wear loose-fitting cotton clothing to help relieve discomfort.